Study on explosion distance of energy storage power station

Do container type lithium-ion battery energy storage stations cause gas explosions?

Here, experimental and numerical studies on the gas explosion hazards of container type lithium-ion battery energy storage station are carried out. In the experiment, the LiFePO4 battery module of 8.8kWh was overcharged to thermal runaway in a real energy storage container, and the combustible gases were ignited to trigger an explosion.

Is a battery module overcharged in a real energy storage container?

The battery module of 8.8kWh is overcharged in a real energy storage container. The generation and explosion phenomenon of the combustible gases are analyzed. The numerical study on gas explosion of energy storage station are carried out. Lithium-ion battery is widely used in the field of energy storage currently.

What happened at an APS battery energy storage station?

In April 2019, a fire broke out at a battery energy storage station deployed by APS in Peoria, Arizona, USA. An explosion occurred upon opening the compartment door, resulting in injuries to 8 firefighters .

What is the shortest time for combustible gas to reach explosion limit?

It is observed that the shortest time for the combustible gas concentration in the prefabricated cabin to reach the explosion limit is 9.8 s, regardless of the battery thermal runaway location. Figure 12. Time of TR gases released in different battery racks to reach explosion limit (where (a), (b), and (c) represent battery racks 1, 4, and 6).

Does gas explosion cause thermal runaway of battery module?

The thermal runaway process of the battery module was involved in this numerical study. Considering that gas explosion may cause thermal runaway of battery module in the actual scene, the existence of high-temperature zone may be longer and the temperature peak may be higher.

What is the maximum explosion overpressure caused by combustible gas?

The maximum explosion overpressure caused by the explosion of combustible gas generated by the TR of 24 and 48 batteries in the middle of the prefabricated cabin is 92.2 and 566 kPa. Compared with the upper left corner and lower right corner, the TR of the battery in the middle of the prefabricated chamber is the least likely to cause serious harm.